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Property and Equipment - Property and Equipment (Detail) - USD ($)	Sep. 30, 2024	Sep. 30, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 45,648,000	$ 45,556,000
Less: Accumulated depreciation and amortization	(34,176,000)	(32,310,000)
Property and equipment, net	11,472,000	13,246,000
Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,425,000	3,425,000
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	15,236,000	14,882,000
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 26,987,000	$ 27,249,000

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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